Josie Jane, a young babysitter working for an affluent family, has just discovered an ideal spot to hide during a game of hide-and-seek with the child she is looking after. Moments later, the house is invaded by a group of ruthless cultists searching for an apocalyptic secret concealed within its walls. They terrorize the family, unaware of Josie’s presence. Trapped in a vast, isolated, and dark home, Josie faces a dilemma: remain hidden and hope to make it through the night, or emerge from the shadows to confront the cult, defeat them, and rescue the family. Equipped with a few practical skills she picked up in her youth, Josie battles the cultists—and her own fears—through a harrowing night filled with terror and a reality-altering revelation.